Molecular model for de Vries type smectic-A-smectic-C phase transition in liquid crystals

M.V. Gorkunov, M.A. Osipov, F. Giesselmann, T.J. Sluckin, J.P.F. Lagerwall

Research output: Contribution to journalArticle

41 Citations (Scopus)

Abstract

We develop both phenomenological and molecular-statistical theory of smectic-A-smectic-C phase transition with anomalously weak smectic layer contraction. Using a general mean-field molecular model, we demonstrate that a relatively simple interaction potential suffices to describe the transition both in conventional and de Vries type smectics. The theoretical results are in excellent agreement with experimental data. The approach can be used to describe tilting transitions in other soft matter systems.
LanguageEnglish
Number of pages5
JournalPhysical Review E: Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics
Volume75
Issue number6
DOIs
Publication statusPublished - 27 Jun 2007

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Liquid Crystal
Phase Transition
liquid crystals
Tilting
Mean Field
Contraction
Experimental Data
contraction
Interaction
Model
Demonstrate
interactions

Keywords

  • smectic-A
  • smectic-C
  • soft matter
  • molecular theory
  • smectic layer
  • de Vries
  • mean-field molecular model

Cite this

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Molecular model for de Vries type smectic-A-smectic-C phase transition in liquid crystals. / Gorkunov, M.V.; Osipov, M.A.; Giesselmann, F.; Sluckin, T.J.; Lagerwall, J.P.F.

In: Physical Review E: Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics , Vol. 75, No. 6, 27.06.2007.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Molecular model for de Vries type smectic-A-smectic-C phase transition in liquid crystals

AU - Gorkunov, M.V.

AU - Osipov, M.A.

AU - Giesselmann, F.

AU - Sluckin, T.J.

AU - Lagerwall, J.P.F.

PY - 2007/6/27

Y1 - 2007/6/27

N2 - We develop both phenomenological and molecular-statistical theory of smectic-A-smectic-C phase transition with anomalously weak smectic layer contraction. Using a general mean-field molecular model, we demonstrate that a relatively simple interaction potential suffices to describe the transition both in conventional and de Vries type smectics. The theoretical results are in excellent agreement with experimental data. The approach can be used to describe tilting transitions in other soft matter systems.

AB - We develop both phenomenological and molecular-statistical theory of smectic-A-smectic-C phase transition with anomalously weak smectic layer contraction. Using a general mean-field molecular model, we demonstrate that a relatively simple interaction potential suffices to describe the transition both in conventional and de Vries type smectics. The theoretical results are in excellent agreement with experimental data. The approach can be used to describe tilting transitions in other soft matter systems.

KW - smectic-A

KW - smectic-C

KW - soft matter

KW - molecular theory

KW - smectic layer

KW - de Vries

KW - mean-field molecular model

U2 - 10.1103/PhysRevE.75.060701

DO - 10.1103/PhysRevE.75.060701

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